... desorption, they are separated from each other. The columns are commonly filled with porous silica or packing ... C8, C18 etc.We can also provide prepacked columns for our custom to analyze samples or separate ... YMC, Daiso etc.*We can also produce HPLC columns on the basis of customers’ requirements and we ... attached with test report before sale.2. For columns of special type such as polymer column, we ...